[ERROR] Error executing Maven.[ERROR] 1 problem was encountered while building the effective set

error¶

When maven was installed yesterday, the configuration file was modified and the following errors were found

First observe the type of error,

[ERROR] Error executing Maven.
[ERROR] 1 problem was encountered while building the effective settings
[FATAL] Non-parseable settings E:\apache-maven\apache-maven-3.8.3\conf\settings.xml: Duplicated tag: 'mirrors' (position: START_TAG seen ...</mirrors>\r\n  <mirrors>... @167:12)  @ E:\apache-maven\apache-maven-3.8.3\conf\settings.xml, line 167, column 12

Reason¶

Maven configuration file setting.xml is wrong.

Redundant mirrors

3. Verify again: it has been resolved!